65435057972478 has 12 divisors (see below), whose sum is σ = 141775958940408. Its totient is φ = 21811685990820.

The previous prime is 65435057972441. The next prime is 65435057972507. The reversal of 65435057972478 is 87427975053456.

65435057972478 is a `hidden beast` number, since 6 + 5 + 4 + 3 + 5 + 0 + 579 + 7 + 2 + 47 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1817640499218 + ... + 1817640499253.

It is an arithmetic number, because the mean of its divisors is an integer number (11814663245034).

Almost surely, 2^{65435057972478} is an apocalyptic number.

65435057972478 is an abundant number, since it is smaller than the sum of its proper divisors (76340900967930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65435057972478 is a wasteful number, since it uses less digits than its factorization.

65435057972478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635280998479 (or 3635280998476 counting only the distinct ones).

The product of its (nonzero) digits is 1778112000, while the sum is 72.

The spelling of 65435057972478 in words is "sixty-five trillion, four hundred thirty-five billion, fifty-seven million, nine hundred seventy-two thousand, four hundred seventy-eight".